Postman not working properly for POST request for customized actions in Yii2

Yii 2.0 REST APIs
1

Hi,

I am using REST API in yii2. I have a table called studentrecords. The controller is foll

<?php

namespace app\controllers;
use Yii;
use yii\rest\ActiveController;

use app\models\Studentrecords;

class StudentrecordsController extends ActiveController
{
    public $modelClass = 'app\models\Studentrecords';
	public function behaviors()
{
return [
    [
        'class' => \yii\filters\ContentNegotiator::className(),
        'only' => ['index','create','update','delete'],
        'formats' => [
            'application/json' => \yii\web\Response::FORMAT_JSON,
        ],
    ],
];
}


	public function actionIndex()
{
   \Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
    
}
public function actions()
{
    $actions = parent::actions();

    // disable the "delete" and "create" actions
    unset($actions['create']);

    
    return $actions;
}
public function prepareDataProvider()
{
    // prepare and return a data provider for the "index" action
}
	public function actionCreate()
	{
	  $model = new Studentrecords();
	  $model->load(Yii::$app->request->post());
		
	     $model->save(false);
			return $model;
	  
	  
	}

}

Here when I use Postman for POST request to the API http://localhost/student/web/studentrecords then the output is

{
    "Id": 30
}

Only the Id is getting saved in table. Other fields are not getting saved. What to do?